Camren Allen Concept Check 1.1: 1.) A biosphere has an ecosystem that consists of all living things in an area. An ecosystem consists of communities which hold organisms that live in a specific area. A community consists of populations of all the individual organisms in a specific area. A population consists of living things called organisms. Organisms break down into organs and organ systems which are more complex parts of organisms. Organs and Organ Systems are created by tissues which is
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------------------------------------------------- Enzyme Pre-Lab Harry Kang 9/26/12 1) The purpose of this lab was to determine the rate of enzyme activity under variety of different conditions‚ such as‚ different amount of drops of enzymes and different temperature of water. The class measured the pressure in the test tube during the reaction of the substance with‚ 1.5 ml of H2O2‚ 1.5ml of H2O and different amounts of enzyme drops‚ to determine how much oxygen gas is produced during the reaction
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Peter Dang Mrs. Truesdell AP Biology Period 5 2 October 2013 CHAPTER 7 STUDY GUIDE AN OVERVIEW OF PHOTOSYNTHESIS Autotrophs are plants that can feed themselves by making their own food. Photo-autotrophs are organisms that produce organic molecules from inorganic molecules using the energy of light. Producers are when plants make their own organic molecules. A redox reaction is oxidation and reduction. Photosynthesis takes water and carbon dioxide to make glucose and oxygen. Cellular respiration
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Sam Rausser Wednesday‚ August 17‚ 2011 3:38 PM Once glucose is made‚ glucose molecules can be converted (by plants) to… 1) monosaccharides‚ like fructose 2) Disaccharides a. Maltose (glu‐glu) seeds b. Sucrose (glu‐fru) sugar cane‚ sugar beets 3) Polysaccharides a. Starch‚ food storage in roots (chains of glucose) b. Cellulose‚ plant structure (chains of glucose) 4) Amino Acids a. Glucose + N from ground 5) Lipids‚ specifically oils which are energy source in seeds & phospholipids found in membranes
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Condensation synthesis- process by which links monomers into polymers 1. 1 water molecule is removed for each monomer added (one monomer loses a hydroxyl group and the other loses a hydrogen so that they are then able to bond covalently to each other) 2. Enzymes are needed 3. Energy is expended by both monomers 4. Anabolic – building blocks 5. Also known as a dehydration reaction b. Hydrolysis – process which separates polymers into monomers 1. 1 water molecule is added (hydrogen attaches to one monomer
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synthesized from different replication forks. Because DNA can only synthesize from 5’->3’‚ there is a leading strand and lagging strand which creates Okazaki fragments that are later joined together by DNA Ligase. After DNA is replicated proofreading enzymes will check and repair any mistakes that occurred during replication. After S phase is the G2 phase where the cell grows even larger. G2 is followed by mitosis‚ which is subdivided into 5 parts: prophase‚ metaphase‚ anaphase‚ telophase‚ and cytokinesis
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HETEROGENEOUS CATALYSIS D. C. AGUILAR AND B. N. SANCHEZ INSTITUTE OF CHEMISTRY‚ COLLEGE OF SCIENCE UNIVERSITY OF THE PHILIPPINES‚ DILIMAN QUEZON CITY‚ PHILIPPINES RECEIVED MARCH 17‚ 2008 ABSTRACT Catalysis which involves the use of a catalyst in a different phase from the reactants is known as heterogeneous catalysis. Catalysts are known to enhance rates of reaction without being consumed and they also reduce activation energies. The hydrogen peroxide decomposition reaction catalyzed
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photosynthesize‚ and are thus heterotrophic. But fungi obviously aren’t like animals‚ and don’t have a stomach to digest their food in. There are various ways that fungi can receive their nourishment instead. The first thing they are able to do is secrete enzymes‚ called exoenzymes‚ to break down the complex molecules in their food into smaller organic compounds that they can easily absorb. Fungi that use this absorption method on nonliving organic material are called saprobes. If a fungi isn’t saprobic‚ it
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AP BIOLOGY ESSAY QUESTIONS 1. Discuss the lock-and-key theory of enzyme-substrate interaction giving a specific example to illustrate the theory. Include in your discussion the effects of each of the following: a. b. c. d. 2. Substrate concentration pH shifts Temperature shifts Competitive inhibition Describe in detail the process of meiosis as it occurs in an organism with a diploid chromosome number of 4 (2n = 4). Include labeled diagrams in your discussion. Indicate when and how each of the
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Observing Ecosystems Ecosystems-The sums of all the organisms living within its boundaries and all the abiotic factors with which they interact. Chemical Elements such as carbon and Nitrogen are cycled among abiotic and biotic components of the ecosystem. Photosynthetic organisms assimilate these elements in inorganic form from the air‚ soil‚ and water and incorporate them into their biomass‚ some of which is consumed by animals. Both energy and matter are transformed in ecosystems throught
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